A Boy Scouts of America recipe 4 qt. popped popcorn 1 ½ C. sugar 1/2 C. light corn syrup 2 T. butter 1/2 tsp. salt 1/4 tsp. cream of tartar 3 to 4 T. gelatin powder, your choice of flavor 1 tsp. baking soda Preheat oven to 250ºF. Place popcorn in a large 4-inch deep buttered baking pan. Keep warm in the oven. Line 2 cookie sheets with wax paper and butter the paper. In a large saucepan, combine sugar, corn syrup, butter, salt and cream of tartar. Bring to a boil, stirring constantly. Cook without stirring until mixture reads 250ºF on a candy thermometer. Stir in gelatin powder and cook another minute until it reaches 260ºF. Remove from heat, and then stir in baking soda quickly. Remove popcorn from the oven. Pour syrup over top of popcorn while syrup is still foamy. Gently mix to coat popcorn. Bake at 200ºF for 1 hour, stirring 2 to 3 times. Turn onto buttered paper. Cool completely and store.